Which of the following explains why vendors publish MD5 values when they provide software patches for their customers to download over the Internet?

Which of the following explains why vendors publish MD5 values when they provide software patches for their customers to download over the Internet?
A . The recipient can verify integrity of the software patch.
B . The recipient can verify the authenticity of the site used to download the patch.
C . The recipient can request future updates to the software using the published MD5 value.
D . The recipient can successfully activate the new software patch.

Answer: A